function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baquero, Enrique & Moraza, Maria Lourdes & Jordana, Rafael', 2],
    ['Judson, Mark L. I. & Mąąkol, Joanna', 2],
    ['Noei, Javad & Inak, Emre & Çobanoğlu, Sultan & Saboori, Alireza', 2],
    ['Stalstedt, Jeanette & Laydanowicz, Joanna & Lehtinen, Pekka T', 3],
    ['Torunlar, Alper & Buğa, Evren & Sevsay, Sevgi', 4],
    ['Zhang, Zhi-Qiang & Fan, Qing-Hai', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);